Phoenix Contact PSR-SPP-24UC-ESA4 Dual-Channel Safety Relay

Phoenix Contact PSR-SPP-24UC-ESA4 is a dual-channel safety relay that operates from a 24 V DC supply. Designed to monitor safety devices and deliver fail-safe outputs, it supports two independent channels so you can implement redundant safety logic for critical machine control. This compact relay is intended for use in industrial automation applications such as emergency-stop circuits, safety interlocks, and protective-device monitoring, where reliable safe-off signaling is required. The PSR-SPP-24UC-ESA4 is a straightforward, panel-mounted solution that helps simplify wiring and integration with standard control electronics and safety equipment. Its 24 V DC operating voltage aligns with common control-system supplies, enabling seamless compatibility with a wide range of safety devices and controllers. By providing two safety channels in a single device, it supports safer, more maintainable safety architectures without the need for additional single-channel relays. Ideal for machine builders and integrators seeking a dependable, compact dual-channel safety relay from Phoenix Contact.